Razor-blade stropper.



R. W. HOSENDAHL.

. RAZOR BLADE STROPPER.

APPLICATION FILED MAR. 5, 1918.

329281966@ mmm 06A I5, 1918,

' BEYNOLD W. ROSENDAHL, OF PHILADELPHIA, PENNSYLVANIA.

RAZOR-BLADE STROPPER.

Speciication of Letters Patent.

Patented ct. 15, 1918.

Application led March 5, 1918. Serial No. 220,449.

To all whom t may concern.'

Be it known that I, REYNOLD WV. ROSEN- DAHL, a citizen of the UnitedStates, residing at Philadelphia, in the county of Philadelphia andState of Pennsylvania, have invented certain new and useful Improvementsin Razor-Blade Stroppers, of which the following is a specification.

One object of my invention is to provide a device which will securelyhold safety razor blades and permit them to be stropped.

Another object is to so construct my 1nvention that while it securelyholds the blade it permits the blade to slightly flex or bend due to thestropping action so as to conform to the surface of the razor strop orhone.

A still further obj ect is to so construct my invention that the bladescan be easily secured in position and can be easily removed therefrom.

Another object is to make my invention of simple construction and ysothat it can be easily manipulated to efficiently sharpen the razorblade.

These objects, and other advantageous ends which will be describedhereinafter, ll attain in the following manner, reference being had tothe accompanying drawings in which Figure 1 is a perspective view of myimproved razor blade stropper,

Fig. 2 is a fragmentary top plan view,

Fig. 3 is a side elevation of Fig. 2, and

Fig. 4 is a section taken on the line 4-4 of Fig. 2, and drawn on aslightly enlarged scale.

Referring to the sent clamping jaws drawings, 1 and 2 repre- A whichhave handles 3' and 4, respectively. These handles are pivoted togetherat 5. rl`he handles and jaws are preferably stamped out of sheet metal,the handles being substantially U-shape in cross section and so arrangedthat the handle 4 is adapted to move within the leg portions 6 .and 7 ofthe handle 3, as clearly shown in Fig. 1. j

The handle 3 has an opening 8 through which the forward end of thehandle 4 projects and in this manner the handles 3 and 4 cross eachother, and a separating pivotal movement of the handles 3 and 4 servesto separate the jaws 1 and 2. Each of jaws 1 and 2 is made concaved onits inner surface, as shown at 9, and is convex on its outer surface, asshown at 10.

The jaw 2 has two nubs or lugs 11 projecting inwardly and toward the jaw1, as clearly shown in Figs. 2 and 4. These lugs 11 are preferablyformed by indenting the outer surface 10 of the jaw 2. The jaw 1 atplaces opposite the lugs 11 has holes 12, for a purpose hereinafterdescribed.

Pads 13 and v14, which are preferably made of felt or other soft cloth,are secured to the inner surfaces 9 of the respective jaws 1 and 2.These pads 13 and 14 have holes 15 and 16, respectively, which allow thelugs 11 to project therethrough when the clamping jaws 1 and 2 are movedtogether, such for example as in the position illustrated in thedrawings. The lugs 11 are provided to enter holes 17 provided in therazor blade 18.

1n the use of my improved stropper a separating movement of the handles3 and 4 causes the jaws 1 and 2 to separate. The razor blade 18 is thenplaced upon the pad 14 so that the lugs 11 pass through the holes 17 ofthe razor blade. It will be noted that the lugs 11 are olf center, or inother words are located to one side of the longitudinal center line ofthe jaws 1 and 2. By this construction and by having the holes 17 of therazor blade 18 located centrally between the oppositely 'disposedcutting edges of the razor blade, 1 secure an overhang of the razorblade, or in other words permit one cutting edge of the razor blade toproject beyond the outer side edges of the jaws 1 and 2 while the othercutting edge is located a safe distance inside of the opposite outerside edges of the jaws 1 and 2.

After the razor blade|18 has been thus placed in position the handles 3and 4 are moved together and the jaw 1 will move its pad 13 intoengagement with the upper surface of the blade 18 permitting the tops ofthe lugs to project through the holes 15 in the pad 13 and into theholes 12 in the jaw 1. It will thus be noted that the razor blade 18 isactually held between the two pads 13 and 14 and thegripping of thehandles 3 and 4 during the stropping action of the blade 18 will firmlyhold the blade between the jaws but will permit the blade to flex orbend slightly.

The convexity of the outersurfaces 10 of the jaws 1 and 2 permits asmooth sliding handles from clearly shown at 19 in Fig. 4. 1t will befurther noted that by bending the handles so as to be substantiallyU-shape in cross section and to lap each other, as above described, acurved or twisted portion 2O is provided between the handle 3 and jaw 1and a substantially similar curved or twisted portion 21 is providedbetween the handle t and the jaw 2. r1`his twisted portion greatly addsstrength to the junction between the jaws and the handles and alsoprovides a comfortable abutment for the fin-y gers when' the stropper isin use.

1t will be noted that in addition to providing a resilient mounting forthe blade 18 the pads 13 and ll serve as a means of protection for theedge of the blade 18 which is positioned. between the two jaws 1 and 2.1n other words these pads 13 and 14 prevent the edge from becomin dullas would be the case if the interpose edge were to come in Contact withthe metal of the jaws 1 and 2. Thus the pads 13 also prevent one edgefrom becoming dull while the other` edge is being sharpened.

As a means for locking the two handles 3 and a together 1 provide a clip22 which is substantially U-shape and has its. opposite ends 23 pivotedwithin holes 24 in the handle 3. 'lhis clip is located near the outerends of the handles 4 and 5 so that it can be swung around the ends ofthe the position shown in dotted lines to the position shown in fulllines. The handle l is preferably notched on its top, as shown at 25,and the clip is of such length that it will first compress or move thehandles together even after the blade has been clamped between the jaws1 and 2; in other words the handles are slightly sprung together untilthe clip enters the notch, then the resiliency ofthe handles causes themto spring apart slightly and the clip will resist this latter mentionedspringing action to firmly hold the ,blade in position.

While 1 have described my invention as taking a particular form, it willbe undermerecestood that the various parts of my invention may bechanged without departing from the spirit thereof, and hence 1 do. notlimit myself to the precise construct-ion set forth, but consider that 1am at liberty to make such changes and alterations as fairly come withinthe scope of the appended claims.

Having thus described my invention, what 1 claim as new and desire tosecure by Letters Patent is:

1. A razor blade stropper including two clamping jaws having integralsheet metal handles pivoted together, one of said handles having anopening therein through which the otherl handle projects to provide` apivotal crossing for the handles, said handles being made U-shape incross section and including a twisted portion whereby the sides f thehandle extend in planes substantially at right angles to the width ofthe jaws, to provide a comfortable curved abutment for the fingers whenthe stropper is in use, substantially as described.

2. A. razor blade stropper including two clamping jaws having handlespivoted to gether, one of said handles having an opening therein throughwhich the other handle projects to provide a pivotal crossing for thehandles, one of said handles at one side of the pivotal crossing beingU-shape in cross section, the other of said handles having a partadapted to move between the leg portions of said U-shaped handle; and asubstantially ll-shape clip having its leg portions pivoted to one ofthe adapted to straddle the other handle by being swung around the endsof the handles, said latter mentioned handle having a notch adapted toreceive the looped end of said clip, substantially as described.

1n testimony whereof 1 have signed my name to this specification in thepresence of two subscribing witnesses.

REYNOLD W. ROSENDHL Witnesses:

MARY A. 1NGLAR, Cries. E. Porre.

handles and

